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ASTM Grade HH Steel vs. N07752 Nickel

ASTM grade HH steel belongs to the iron alloys classification, while N07752 nickel belongs to the nickel alloys. They have a modest 36% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is ASTM grade HH steel and the bottom bar is N07752 nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
22
Fatigue Strength, MPa 150
450
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
73
Tensile Strength: Ultimate (UTS), MPa 580
1120
Tensile Strength: Yield (Proof), MPa 270
740

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Mechanical, °C 1100
960
Melting Completion (Liquidus), °C 1400
1380
Melting Onset (Solidus), °C 1360
1330
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 14
13
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 20
60
Density, g/cm3 7.7
8.4
Embodied Carbon, kg CO2/kg material 3.7
10
Embodied Energy, MJ/kg 53
150
Embodied Water, L/kg 180
260

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 53
220
Resilience: Unit (Modulus of Resilience), kJ/m3 190
1450
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
23
Strength to Weight: Axial, points 21
37
Strength to Weight: Bending, points 20
29
Thermal Diffusivity, mm2/s 3.8
3.2
Thermal Shock Resistance, points 12
34

Alloy Composition

Aluminum (Al), % 0
0.4 to 1.0
Boron (B), % 0
0 to 0.0070
Carbon (C), % 0.2 to 0.5
0.020 to 0.060
Chromium (Cr), % 24 to 28
14.5 to 17
Cobalt (Co), % 0
0 to 0.050
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 52.9 to 64.8
5.0 to 9.0
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 11 to 14
70 to 77.1
Niobium (Nb), % 0
0.7 to 1.2
Phosphorus (P), % 0 to 0.040
0 to 0.0080
Silicon (Si), % 0 to 2.0
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.0030
Titanium (Ti), % 0
2.3 to 2.8
Vanadium (V), % 0
0 to 0.1
Zinc (Zn), % 0
0 to 0.050